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WorksheetsDiagnostic Test in Mathematics
Total questions: 48
Worksheet time: 43mins
Which of the following best describes the polygon in the figure?
It is a regular concave hexagon.
It is an irregular convex pentagon.
It is an irregular concave hexagon.
It is a regular convex hexagon.
Your classmate told you that the figure shown at the right is a polygon. Fortunately, your teacher has just discussed the lesson in your class. How will you discuss to him that his answer is incorrect?
The figure is not a polygon because there are sides in the figure that are collinear.
The figure is not a polygon because the sides are not connected.
The figure is not a polygon because it is a solid figure.
All of the above.
Harry is working on his floor plan design for his dream house. He needs to determine the total interior angles of a convex polygon that he wants to use for his flooring. If Harry’s polygon has 6 sides, what is the total sum of its interior angles?
540°
720°
900°
1260°
An irregular polygon with four sides has different angle measurements. Its three angles measure 65°, 100°, and 125°. Therefore, the measure of the fourth angle is 70°. Is the statement true?
Yes, because the sum of an interior angle of a triangle is 360°.
Yes, because the sum of an interior angle of a quadrilateral is 360°.
Yes, because the sum of an exterior angle of a pentagon is 360°.
Yes, because the sum of an exterior angle of a hexagon is 360°.
What is 0.45 as a fraction in lowest term?
9/15
9/20
20/9
15/9
Which of the following is true about the value of 2/3 in decimals?
It is repeating.
It is terminating.
It is both repeating and non-terminating.
It is non-repeating and non-terminating.
On the number line, which of the following square root can be found between the two integers 11 and 12?
√12.5
√130
√174
√164
The diameter of a hydrogen atom is 0.000 000 001 cm. What is its diameter in scientific notation?
1×10−8
1×10−9
1×109
1×109
In section Sampaguita, 3/5 of the students are boys. 1/3 of the boys wear black socks. What fraction of the class are boys who wear black socks?
1/5
3/8
1/4
1/2
A jar of peanut butter is shaped like a cylinder. It has a radius of 3 dm and a height of 5 dm. How many cubic decimeters of jam does it contain?
141.3 dm3
14.13 dm3
1.413 dm3
1413.1 dm3
Find the volume of the cylinder whose radius is 4 cm and height is 8 cm. 401.92 cm3
401.92 cm3
150.72 cm3
452.16 cm3
400.92 cm3
A pyramid has a height of 15 cm. Each side of its base is 5 cm long. What is its volume?
25 cm3
30 cm3
35 cm3
125 cm3
Which of the following is NOT a set?
collection of whole numbers
collection of days in a week
collection of bright students
collection of colors of the rainbow
Which of the following is an infinite set?
the set of multiples of 5
the set of negative integers
the set of positive integers
the set of even numbers
Which of the following represents set M = {whole numbers between 8 and 12}?
{8, 9, 10, 11}
{8, 9, 10, 11, 12}
{8, 9, 10, 11, 12, ...}
{9, 10, 11}
An empty set or a null set (in symbols, { } or Ø) is a set which does not contain any element. Which of the following best describes an empty set?
The set of numbers divisible by 3.
The set of counting numbers with decimal digits.
The set of whole numbers less than 0.
Both B and C are empty sets.
During the school fair, students were encouraged to join a music club and/or sports club. Among the 50 students, 24 joined the music club only, and 12 joined the sports club only. In the Venn diagram, how many students joined neither music club nor sports club?
4 students
46 students
34 students
10 students
Mr. Lee wants to assess the performance of his Grade 7 mathematics students. He created a form and asked his students to complete it. What method of data collection did he use?
interview
questionnaire
registration
experiment
In statistics, questions that can be answered by collecting data through surveys, interviews, and observations are called statistical questions. These questions have answers that vary from person to person. Which of the following is NOT an example of a statistical question?
What do grade 7 students prefer to eat for lunch?
What is the most favorite K-pop group of female grade 7 students?
How tall are the grade 7 students in Navotas?
What is Carl’s favorite movie?
A supermarket is celebrating its 20th anniversary. The manager has decided to give a gift certificate to every 20th customer who enters. The method of sampling used is _____
Cluster Sampling
Simple Random Sampling
Stratified Random Sampling
Systematic Sampling
The faculty conducted a survey to determine the preferred healthcare service provider of its members. The variable of interest of this study is ___________________.
the most common illness among the faculty members
the number of members in the association
the health care service provider preference of the faculty
the number of members who wish to avail of the health care service.
In the frequency distribution table below, how many students were surveyed?
8 students
24 students
26 students
42 students
Twenty nursing students were given a blood test to determine their blood types, and the results are shown below. Which of the following graphs can best display the data?
bar graph
ogive
line graph
histogram
To accurately allocate a portion on the pie chart with a total 360⁰, percentage of a certain data value must be proportional to the degree of the central angle of the pie. Using the table below, what must be the measure of the central angle of the portion for the fishermen?
90⁰
135⁰
81⁰
54⁰
What must be added to -16 to obtain 32?
16
48
-48
-16
Danica’s account balance in her bank card is ₱5,000. She shopped at the mall and used the card to pay two transactions for ₱1,250 and ₱975. What is her account balance now?
₱2775
₱7225
₱2785
₱721
Hector is standing on a hill 41 meters above sea level. Directly below him, Joseph is working in a tunnel 23 meters below sea level. How far apart are they?
64 meters apart
18 meters apart
943 meters apart
1.782 meters apart
Which of the following expressions is correct?
(20 x 5) + 19 x 6 = 714
(9 + 31) x (7 + 25) = 305
(45÷9) x 7 + 31 = 66
(64–4)÷10 - 3² = 54
Solve the expression: 54 x 2÷ (30÷3) + 45 = _____________
59
184
170
257
Find the value of n that makes the equation correct: −n÷(−2)x 4=8.
1
10
5
4
Thea is asked to simplify the expression x8 • x5 • x2. If you were Thea, how will you simplify it?
Copy the variable x and add the exponents: answer = x15
Combine the variables and add the exponents: answer = 3x15
Copy the variable and subtract the exponents: x1 or simply x
Combine the variables and subtract the exponents: 3x1 or simply 3x
What is the numerical coefficient of the expression 7x3?
7
x
3
1
Which expression best describes the phrase 'thrice the sum of a number x and five'?
3x + 5
3(x + 5)
3(5) + x
5(x + 3)
The number of terms in an algebraic expression is determined by the number of expressions separated by a plus sign (+) or a minus sign (–). How many terms are there in the expression 3x3 + 2x2 + 4x – 9?
1 term
2 terms
3 terms
4 terms
Which is the correct translation for the expression 2x+7 ?
twice the sum of a number x and seven
third of the sum of twice a number x and seven
thrice the sum of a number x and seven
half of the sum of a number x and seven
Barry decided to put a fence around his rectangular vegetable garden. If the length of the garden is 5 meters more than twice the width, how long is the fencing materials needed?
2x + 5 meters
6x + 10 meters
2x + 10 meters
2x - 5 meters
What is the product when 2x is multiplied by the trinomial x2 – 4x + 3?
2x3 – 8x2 + 6x
2x2 – 8x + 6
16x
5x2 – 5x
Mario is 5 years older than his brother Luigi. If the sum of their ages is 21, how old is Luigi?
8 years old
13 years old
16 years old
5 years old
If 5 less than the number is 19, what is the number?
14
24
9
27
RJ has two pieces of luggage weighing 12.6 kilograms and 9.4 kilograms for his flight going to Palawan. If the airline company gives each passenger a weight limit of 25 kilograms for baggage, how much more can he take on his flight?
at least 3 kilograms
at most 3 kilograms
at least 4 kilograms
at most 4 kilograms
Your classmate was asked to expand (2x – 3)2. He answered 4x2 – 9. Is his answer correct?
Yes, because squaring a binomial always produces a binomial product.
Yes, because the product rule is correctly applied.
No, because squaring a binomial always produces a trinomial product.
No, because the answer must be 4x raised to 2, added to 9.
A bag contains 5 balls: 2 red (R) and 3 blue (B). In a game of chance, Amara takes a ball out of the bag without looking, notes down the color, and then puts it back into the bag. Amara then takes out another ball, notes down the color and puts it back into the bag.
The table below shows all the possible outcomes for this game.
How many possible outcomes are there?
25
36
10
16
A bag contains 5 balls: 2 red (R) and 3 blue (B). In a game of chance, Amara takes a ball out of the bag without looking, notes down the color, and then puts it back into the bag. Amara then takes out another ball, notes down the color and puts it back into the bag.
The table below shows all the possible outcomes for this game.
What is the probability of drawing blue twice?
9/25
16/25
10/25
2/25
The table below shows the results of outcomes after throwing a pair of dice.
How many possible outcomes of rolling a pair of dice?
6
12
24
36
The table below shows the results of outcomes after throwing a pair of dice.
Which pairs of dice will give the sum of greater than 6 but less than 8?
(1,6), (2,5), (3,4), (4,3), (5,2), (6,1)
(1,1), (2,2), (3,3), (4,4), (5,5), (6,6)
(1,5), (2,4), (3,3), (5,1), (4,2), (5,2)
(2,6), (3,5), (4,4), (6,2), (5,3), (3,4)
You are going out in a casual date, how many different outfits can you choose from polo-shirt and T-shirt, Short pants and long pants?
2 possible outfits
4 possible outfits
6 possible outfits
8 possible outfits
A biologist is studying the population of a certain type of bacteria. In one of his samples, the population of bacteria is estimated to be 3.2×107 bacteria. In another sample, taken from a different environment, the population is estimated to be 5.4×106 bacteria.
Express the total population of bacteria from both samples in scientific notation. (Correct answer with a detailed solution will earn 2 points)
A biologist is studying the population of a certain type of bacteria. In one of his samples, the population of bacteria is estimated to be 3.2×107 bacteria. In another sample, taken from a different environment, the population is estimated to be 5.4×106 bacteria.
During an experiment, the biologist found that the bacteria population in the first sample increased by a factor of 2.5×103. Calculate the new population of bacteria in the first sample and express the result in scientific notation.(Correct answer with a detailed solution will earn 2 points)
